susan spends 2 1/4 hours taking inventory and 1 1/2 hours restocking how many hours does susan work

2 1/4 + 1 2/4 = 3 3/4

To find out how many hours Susan works, you need to add the time she spends taking inventory and the time she spends restocking.

First, let's convert the mixed numbers to improper fractions:
2 1/4 hours = 9/4 hours
1 1/2 hours = 3/2 hours

Now, add the two fractions together:
9/4 + 3/2

To add these fractions, you need to have a common denominator. In this case, the common denominator is 4.

To make the denominators equal, we need to multiply the numerator and denominator of the second fraction by 2:
9/4 + (3/2) * (2/2)
9/4 + 6/4

Now that the denominators are equal, add the numerators:
(9 + 6)/4
15/4

Finally, divide the numerator by the denominator to convert the fraction back to a mixed number:
15 รท 4 = 3 remainder 3

Therefore, Susan works for 3 3/4 hours.